Direct answer
Direct Answer - Yes, you can use Turnitin to review your paper before submitting it, provided your institution has enabled the relevant features. Turnitin offers several pre-submission options — including Draft Coach and assignment resubmission settings — that allow students to check their Similarity Reports and AI writing detection indicators before final submission. These tools are designed to help you identify potential issues with originality and AI-generated content so you can make revisions in advance [1].
How Does Turnitin's AI and Similarity Detection Work?
Turnitin employs two distinct detection systems that run concurrently when a paper is submitted. The Similarity Report scans your document against Turnitin's vast database — comprising billions of web pages, academic publications, and previously submitted student papers — and highlights any text matches it finds, generating an overall similarity percentage. This is a long-established tool used by institutions worldwide to identify potential plagiarism [2].
The AI writing detection system works differently. When a paper is submitted, Turnitin breaks the document into overlapping segments of roughly a few hundred words (about five to ten sentences). Each segment is analyzed by a classifier trained to detect the word-probability patterns characteristic of large language models such as GPT-4, Gemini, and Claude [2]. Human writing tends to be inconsistent and idiosyncratic, with a low probability of predicting the next word, whereas AI-generated text follows a consistently high-probability pattern. The model assigns each sentence a score between 0 and 1, then calculates an overall percentage indicating how much of the qualifying text — prose sentences in a long-form writing format — may have been AI-generated [1].
It is important to note that neither system is a definitive judgment of academic misconduct. Turnitin's AI writing detection indicator displays an asterisk (*%) for scores below 20 percent to account for the higher incidence of false positives in that range, and the company emphasizes that the percentage should never be used as the sole basis for disciplinary action [2].
Will Submitting Your Paper to Turnitin Before the Official Deadline Get You Flagged?
No — pre-submission checks using Turnitin will not get you flagged or penalized, provided you use the tools as your instructor intended. Turnitin's Draft Coach, available within Google Docs and Microsoft Word for institutions that license it, allows students to run their own Similarity Reports, citation checks, and grammar checks without submitting to the official assignment. These checks are private and do not enter your institution's Similarity Report repository [3].
If Draft Coach is not available, you can still check your paper by submitting a draft to an assignment that permits resubmissions. In this scenario, Turnitin clearly separates draft uploads from final submissions. For Classic Standard Assignments, your first three attempts generate an immediate Similarity Report, and any subsequent resubmissions require a 24-hour wait. For New Standard Assignments, you are limited to three resubmissions within a 24-hour period [3]. Importantly, only your final submission — not the earlier drafts — is retained in the institutional database for comparison against future submissions. This design ensures that using Turnitin as a review tool before the deadline is a safe and accepted practice [1].
How Can Students Check Their Turnitin AI Score Before Submission?
The most straightforward method for students to check their AI writing score before submission is through Turnitin Draft Coach, a browser-based tool integrated into Google Docs and Microsoft Word. Draft Coach provides real-time feedback on similarity, citations, grammar, and — where enabled — an AI writing indicator that shows the percentage of text that may have been AI-generated [4]. This tool is available only when your institution has licensed it, so you should check with your library or academic integrity office if you are unsure whether it is offered.
If Draft Coach is not available, you have another option. Many instructors create assignments with resubmission enabled specifically so students can preview their reports. When you submit to such an assignment, the Similarity Report and AI writing indicator generate within minutes [3]. You can then view the AI writing percentage — displayed as an overall percentage with highlights on specific segments — and adjust your work accordingly before the final deadline. The AI writing report indicates text it predicts as "AI-generated only" in cyan and "AI-generated and AI-paraphrased" in purple, giving you actionable feedback on which portions may need revision [2].
For students who do not have either option, the best course of action is to speak directly with their instructor about setting up a practice assignment or enabling Draft Coach. Turnitin explicitly states that the pre-submission check is designed as a learning tool, not a punitive measure [4].
The reality is that most students do not have Turnitin Draft Coach enabled at their institution, and even when resubmissions are allowed, you are limited to a handful of checks per day. If you want to see exactly what your Turnitin Similarity and AI writing reports look like before you submit to your instructor — without waiting for a practice assignment to be set up — Turnitin0.com gives you direct access to real Turnitin reports on your own draft. You upload your file and receive a complete AI writing report (with the same *% display for scores below 20%) and a full similarity report, just as your professor would see them. It is a straightforward, no-subscription way to preview your scores, review flagged sections, and make informed edits before the real submission deadline.
※ Turnitin0.com - Actual Turnitin AI Report Cover, Score, Flag And Similarity Summary
FAQ
Can I check my Turnitin AI score without submitting to an official assignment?
Yes — if your institution offers Turnitin Draft Coach, you can run AI and similarity checks in Google Docs or Word without submitting to an assignment. If Draft Coach is not available, resubmission-enabled assignments are the alternative, but those do require an initial submission to a class assignment [3].
Does checking my paper on Turnitin before submission add it to the database?
No. When you use Draft Coach, your document is not added to the institutional repository. When you resubmit a draft to an assignment, only your final submission enters the database, not the earlier drafts [3].
What does the asterisk (*%) mean on the AI writing report?
Turnitin displays an asterisk (*%) for AI detection scores between 0 and 20 percent. This is intentional: the model has a higher rate of false positives below 20 percent, so Turnitin suppresses the exact numeric score to discourage overinterpretation [1][2].
How many times can I resubmit to get a new Similarity Report?
For Classic Standard Assignments, you get three immediate reports; subsequent resubmissions require a 24-hour wait. For New Standard Assignments, you are limited to three resubmissions per 24-hour period [3].
What is the difference between the Similarity score and the AI writing percentage?
The Similarity score measures how much of your paper matches existing sources in Turnitin's database (plagiarism check). The AI writing percentage measures how much of your text was likely generated by AI tools. They are completely independent metrics [1][2].